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-rwxr-xr-xsrc/vnet/tcp/tcp_input.c8
1 files changed, 6 insertions, 2 deletions
diff --git a/src/vnet/tcp/tcp_input.c b/src/vnet/tcp/tcp_input.c
index cb5020d118e..cf74fb91ce1 100755
--- a/src/vnet/tcp/tcp_input.c
+++ b/src/vnet/tcp/tcp_input.c
@@ -2438,11 +2438,15 @@ tcp_check_tx_offload (tcp_connection_t * tc, int is_ipv4)
}
lb = load_balance_get (lb_idx);
+ if (PREDICT_FALSE (lb->lb_n_buckets > 1))
+ return;
dpo = load_balance_get_bucket_i (lb, 0);
- sw_if_idx = dpo->dpoi_index;
- hw_if = vnet_get_sup_hw_interface (vnm, sw_if_idx);
+ sw_if_idx = dpo_get_urpf (dpo);
+ if (PREDICT_FALSE (sw_if_idx == ~0))
+ return;
+ hw_if = vnet_get_sup_hw_interface (vnm, sw_if_idx);
if (hw_if->flags & VNET_HW_INTERFACE_FLAG_SUPPORTS_GSO)
tc->cfg_flags |= TCP_CFG_F_TSO;
}